52231391520 has 384 divisors, whose sum is σ = 208498655232. Its totient is φ = 10674892800.

The previous prime is 52231391479. The next prime is 52231391627. The reversal of 52231391520 is 2519313225.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2242977 + ... + 2266143.

It is an arithmetic number, because the mean of its divisors is an integer number (542965248).

Almost surely, 2^52231391520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52231391520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104249327616).

52231391520 is an abundant number, since it is smaller than the sum of its proper divisors (156267263712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52231391520 is a wasteful number, since it uses less digits than its factorization.

52231391520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23264 (or 23256 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 33.

The spelling of 52231391520 in words is "fifty-two billion, two hundred thirty-one million, three hundred ninety-one thousand, five hundred twenty".